Blood of Eagles — William W. Johnstone

WHERE EAGLES DARE
The Oklahoma Panhandle is one hundred miles of lawlessness and danger: a no man's land designed to separate Texas from pro-Union Kansas. Through this desolate strip rides legendary gunslinger Falcon MacCallister, a young Indian boy by his side. Behind him lies a scene of horror left by outlaws who'd ambushed a small wagon train.

As he searches the Panhandle for the killers, Falcon enters a storm of greed, thievery, and betrayal that has its roots in two long, gleaming bands of steel. A new railway is penetrating this hostile land -- making some people rich, some people dead, and sending a gunfighter and a boy on their own brutal ride to revenge.